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Spiekman IAC, Geurts BS, Zeverijn LJ, de Wit GF, van der Noort V, Roepman P, de Leng WWJ, Jansen AML, Kusters B, Beerepoot LV, de Vos FYFL, de Groot DJA, de Groot JWB, Hoeben A, Buter J, Gelderblom HAJ, Voest EE, Verheul HMW. Efficacy and Safety of Panitumumab in Patients With RAF/RAS-Wild-Type Glioblastoma: Results From the Drug Rediscovery Protocol. Oncologist 2024; 29:431-440. [PMID: 38109296 PMCID: PMC11067815 DOI: 10.1093/oncolo/oyad320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 11/02/2023] [Indexed: 12/20/2023] Open
Abstract
BACKGROUND The prognosis of malignant primary high-grade brain tumors, predominantly glioblastomas, is poor despite intensive multimodality treatment options. In more than 50% of patients with glioblastomas, potentially targetable mutations are present, including rearrangements, altered splicing, and/or focal amplifications of epidermal growth factor receptor (EGFR) by signaling through the RAF/RAS pathway. We studied whether treatment with the clinically available anti-EGFR monoclonal antibody panitumumab provides clinical benefit for patients with RAF/RAS-wild-type (wt) glioblastomas in the Drug Rediscovery Protocol (DRUP). METHODS Patients with progression of treatment refractory RAF/RASwt glioblastoma were included for treatment with panitumumab in DRUP when measurable according to RANO criteria. The primary endpoints of this study are clinical benefit (CB: defined as confirmed objective response [OR] or stable disease [SD] ≥ 16 weeks) and safety. Patients were enrolled using a Simon-like 2-stage model, with 8 patients in stage 1 and up to 24 patients in stage 2 if at least 1 in 8 patients had CB in stage 1. RESULTS Between 03-2018 and 02-2022, 24 evaluable patients were treated. CB was observed in 5 patients (21%), including 2 patients with partial response (8.3%) and 3 patients with SD ≥ 16 weeks (12.5%). After median follow-up of 15 months, median progression-free survival and overall survival were 1.7 months (95% CI 1.6-2.1 months) and 4.5 months (95% CI 2.9-8.6 months), respectively. No unexpected toxicities were observed. CONCLUSIONS Panitumumab treatment provides limited CB in patients with recurrent RAF/RASwt glioblastoma precluding further development of this therapeutic strategy.
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Affiliation(s)
- Ilse A C Spiekman
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus MC, Rotterdam, The Netherlands
| | - Birgit S Geurts
- Oncode Institute, Utrecht, The Netherlands
- Department of Molecular Oncology and Immunology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Laurien J Zeverijn
- Oncode Institute, Utrecht, The Netherlands
- Department of Molecular Oncology and Immunology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Gijs F de Wit
- Oncode Institute, Utrecht, The Netherlands
- Department of Molecular Oncology and Immunology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | | | - Paul Roepman
- Hartwig Medical Foundation, Amsterdam, The Netherlands
| | - Wendy W J de Leng
- Department of Pathology, University Medical Cancer Center Utrecht, Utrecht, The Netherlands
| | - Anne M L Jansen
- Department of Pathology, University Medical Cancer Center Utrecht, Utrecht, The Netherlands
| | - Benno Kusters
- Department of Pathology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Laurens V Beerepoot
- Department of Internal Medicine, ETZ Hospital (Elisabeth-TweeSteden Ziekenhuis), Tilburg, The Netherlands
| | - Filip Y F L de Vos
- Department of Medical Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Derk-Jan A de Groot
- Department of Medical Oncology, University Medical Center Groningen, Groningen, The Netherlands
| | | | - Ann Hoeben
- Division of Medical Oncology, Department of Internal Medicine, GROW School of Oncology and Development Biology, Maastricht University Center+, Maastricht, The Netherlands
| | - Jan Buter
- Department of Medical Oncology, Amsterdam University Medical Center, Location VuMC, Amsterdam, The Netherlands
| | - Hans A J Gelderblom
- Department of Medical Oncology, Leiden University Medical Center, Leiden, The Netherlands
| | - Emile E Voest
- Oncode Institute, Utrecht, The Netherlands
- Department of Molecular Oncology and Immunology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Center for Personalized Cancer Treatment, Rotterdam,The Netherlands
| | - Henk M W Verheul
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus MC, Rotterdam, The Netherlands
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Spiekman IAC, Zeverijn LJ, Geurts BS, Verkerk K, Haj Mohammad SF, van der Noort V, Roepman P, de Leng WWJ, Jansen AML, Gootjes EC, de Groot DJA, Kerver ED, van Voorthuizen T, Roodhart JML, Valkenburg-van Iersel LBJ, Gelderblom H, Voest EE, Verheul HMW. Trastuzumab plus pertuzumab for HER2-amplified advanced colorectal cancer: Results from the drug rediscovery protocol (DRUP). Eur J Cancer 2024; 202:113988. [PMID: 38471288 DOI: 10.1016/j.ejca.2024.113988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 03/14/2024]
Abstract
BACKGROUND In 2-5% of patients with colorectal cancer (CRC), human epidermal growth factor 2 (HER2) is amplified or overexpressed. Despite prior evidence that anti-HER2 therapy confers clinical benefit (CB) in one-third of these patients, it is not approved for this indication in Europe. In the Drug Rediscovery Protocol (DRUP), patients are treated with off-label drugs based on their molecular profile. Here, we present the results of the cohort 'trastuzumab/pertuzumab for treatment-refractory patients with RAS/BRAF-wild-type HER2amplified metastatic CRC (HER2+mCRC)'. METHODS Patients with progressive treatment-refractory RAS/BRAF-wild-type HER2+mCRC with measurable disease were included for trastuzumab plus pertuzumab treatment. Primary endpoints of DRUP are CB (defined as confirmed objective response (OR) or stable disease (SD) ≥ 16 weeks) and safety. Patients were enrolled using a Simon-like 2-stage model, with 8 patients in stage 1 and 24 patients in stage 2 if at least 1/8 patients had CB. To identify biomarkers for response, whole genome sequencing (WGS) was performed on pre-treatment biopsies. RESULTS CB was observed in 11/24 evaluable patients (46%) with HER2+mCRC, seven patients achieved an OR (29%). Median duration of response was 8.4 months. Patients had undergone a median of 3 prior treatment lines. Median progression-free survival and overall survival were 4.3 months (95% CI 1.9-10.3) and 8.2 months (95% CI 7.2-14.7), respectively. No unexpected toxicities were observed. WGS provided potential explanations for resistance in 3/10 patients without CB, for whom WGS was available. CONCLUSIONS The results of this study confirm a clinically significant benefit of trastuzumab plus pertuzumab treatment in patients with HER2+mCRC.
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Affiliation(s)
- Ilse A C Spiekman
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus MC, Rotterdam, the Netherlands
| | - Laurien J Zeverijn
- Oncode Institute, Utrecht, the Netherlands; Department of Molecular Oncology & Immunology, The Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Birgit S Geurts
- Oncode Institute, Utrecht, the Netherlands; Department of Molecular Oncology & Immunology, The Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Karlijn Verkerk
- Oncode Institute, Utrecht, the Netherlands; Department of Molecular Oncology & Immunology, The Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Soemeya F Haj Mohammad
- Department of Molecular Oncology & Immunology, The Netherlands Cancer Institute, Amsterdam, the Netherlands; Department of Medical Oncology, Leiden University Medical Center, Leiden, the Netherlands
| | | | - Paul Roepman
- Hartwig Medical Foundation, Amsterdam, the Netherlands
| | - Wendy W J de Leng
- Department of Pathology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Anne M L Jansen
- Department of Pathology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Elske C Gootjes
- Department of Medical Oncology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Derk-Jan A de Groot
- Department of Medical Oncology, University Medical Center Groningen, Groningen, the Netherlands
| | - Emile D Kerver
- Department of Medical Oncology, OLVG, Amsterdam, the Netherlands
| | | | - Jeanine M L Roodhart
- Department of Medical Oncology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Liselot B J Valkenburg-van Iersel
- Division of Medical Oncology, Department of Internal Medicine, GROW school of Oncology and Development Biology, Maastricht University Center+, Maastricht, the Netherlands
| | - Hans Gelderblom
- Department of Medical Oncology, Leiden University Medical Center, Leiden, the Netherlands
| | - Emile E Voest
- Oncode Institute, Utrecht, the Netherlands; Department of Molecular Oncology & Immunology, The Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Henk M W Verheul
- Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus MC, Rotterdam, the Netherlands.
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